JP6748332B2 - Current collecting member for cylinder body plating device and plating device - Google Patents

Description

The present invention relates to a current collecting member for a cylinder body plating device and a plating device using the same, and particularly to a current collecting member for a cylinder body plating device that is particularly preferably used for a base end portion of a chuck cone spindle. Regarding plating equipment.

2. Description of the Related Art Conventionally, a cylinder plating apparatus described in Patent Document 1 is known for plating an object to be processed such as a cylinder body with a plating apparatus. Further, as a fully automatic gravure plate-making processing system equipped with a cylinder plating device as described in Patent Document 1, there is a fully automatic gravure plate-making processing system described in Patent Document 2.

In the cylinder plating apparatus described in Patent Document 1, when supplying electricity to the cylinder body or supplying electricity to the outside from the cylinder body side, a metal such as iron is attached to the rotating portion at the base end of the chuck cone. A current collector made of metal has been used. The rotating iron current collecting member and a fixing member made of a conductive metal such as copper are brought into contact with each other to supply electricity to the cylinder body from an electric wire connected to the fixing member made of a conductive metal, or the cylinder body side. I was supplying electricity from outside.

However, in the above-described conventional metal current collector, it is necessary to supply oil (lubricant) to the current collector in order to suppress friction of the sliding surface during rotation. Then, by supplying oil to the current collecting member, abnormal discharge is likely to occur, which causes a problem that abnormal discharge occurs in the oil.

Then, when abnormal discharge occurs on the sliding surface of the current collecting member, it is the same as that of electric discharge machining, and a film is formed on the sliding surface, and the sliding surface is uneven. Becomes Then, when the sliding surface becomes uneven, the amount of oil supplied to the sliding surface further increases, which causes a vicious circle in which abnormal discharge is further generated.

Further, there is a problem that the oil supplied to the sliding surface is scattered and the oil is dropped into the plating tank of the plating apparatus, which deteriorates the plating solution. Further, oil flows between the current collecting member and another member, and it becomes difficult for current to flow due to the oil on the sliding surface of the current collecting member, and a voltage higher than usual such as 9 V is required. was there. Furthermore, there is a problem that heat is generated at a temperature higher than usual, such as 120°C. Further, when a graphite current collecting member is used, there is a problem that it is worn to generate powder by rotating and collecting current.

WO2015/151665 WO2011/125926

The present invention has been made in view of the above-mentioned problems of the prior art. By using the chuck cone at the base end of the spindle, the sliding surface can be plated without oil, and abnormal discharge occurs. It is an object of the present invention to provide a current collector member for a cylinder body plating device and a plating device that can efficiently prevent high temperature heat generation at low voltage.

In order to solve the above-mentioned problems, a current collector for a cylinder body plating apparatus of the present invention includes a chuck for a cylinder body plating apparatus that grips both ends of a cylinder body with chuck cones and rotates the cylinder body to perform plating. A current collecting member attached to the base end of a cone and rotated, wherein a cylindrical base material made of a metal body and oil-impregnated carbon provided scattered on the sliding surface of the cylindrical base material or A current collecting member for a cylinder body plating device, comprising: a plurality of lubrication regions made of an oil-impregnated carbon-containing resin.

It is preferable that the lubrication region is circular.

The cylinder body plating apparatus of the present invention includes a plating tank, a chuck cone provided in the plating tank for gripping and rotating the cylinder body, and a current collecting member attached to the proximal end of the chuck cone and rotated. A cylinder including a conductive metal fixing member brought into contact with the sliding surface of the current collecting member and an electric wire connected to the conductive metal fixing member, wherein the current collecting member is a metal body A cylindrical body plating apparatus having: a cylindrical base material; and a plurality of lubrication regions composed of oil-impregnated carbon or an oil-impregnated carbon-containing resin provided scattered on the sliding surface of the cylindrical base material. ..

It is preferable that the lubrication region is circular.

It is preferable that the current collecting member serves as a bearing of a spindle of the chuck cone.

The fully-automatic gravure plate-making processing system of the present invention is a fully-automatic gravure plate-making processing system including the cylinder body plating device.

According to the present invention, by using it at the base end of the chuck cone spindle, it is possible to perform plating treatment on the sliding surface without oiling, and to efficiently generate high temperature heat at low voltage without abnormal discharge. A significant effect of being able to provide the current collector member for the cylinder body plating apparatus and the plating apparatus which can be prevented is achieved. The current collecting member for a cylinder body plating device of the present invention does not require oil supply, so that problems due to oil do not occur, the voltage can be about 2/3 of that of the conventional one, efficiency is high, and heat is also generated. It can be suppressed to about 40°C. Further, the cylinder body plating apparatus of the present invention can prevent the generation of sparks and is excellent in wear resistance, conductivity and durability. INDUSTRIAL APPLICABILITY The present invention is particularly preferably used in a plating apparatus for gravure plate making.

It is a schematic diagram showing one embodiment of a cylinder body plating device of the present invention. It is a schematic diagram which shows the conventional cylinder body plating device.

Embodiments of the present invention will be described below with reference to the accompanying drawings, but it goes without saying that the illustrated examples are shown as examples and various modifications can be made without departing from the technical idea of the present invention. ..

In FIG. 1, reference numeral 10 is a cylinder body plating apparatus of the present invention, and reference numeral 12 is a current collecting member for a cylinder body plating apparatus of the present invention.
The current collector member 12 for a cylinder body plating apparatus of the present invention is provided at the base end portion of the chuck cone of the cylinder body plating apparatus 10 which holds both ends of the cylinder body by chuck cones and rotates the cylinder body to perform plating. A current collecting member 12 attached and rotated, comprising a cylindrical base material 14 made of a metal body, and oil-impregnated carbon or oil-impregnated carbon scattered on a sliding surface of the cylindrical base material 14. A current collecting member for a cylinder body plating device, comprising: a plurality of lubrication regions 16 made of a contained resin.

The cylinder body plating apparatus 10 of the present invention is a plating apparatus using the current collecting member 12 for the cylinder body plating apparatus, and includes a plating tank and a chuck cone provided in the plating tank for gripping and rotating the cylinder body. A current collecting member 12 attached to a base end portion of the spindle 30 of the chuck cone, a conductive metal fixing member 18 brought into contact with a sliding surface of the current collecting member 12, and the conductive metal fixing An electric wire 20 connected to the member 18 is provided, and the current collecting member 12 is provided in a scattered manner on a cylindrical base material 14 made of a metal body and a sliding surface of the cylindrical base material 14. A cylinder body plating apparatus having a plurality of lubricating regions 16 made of oil-impregnated carbon or oil-impregnated carbon-containing resin.

In the cylinder body plating apparatus 10, the current collecting member 12 is rotated in a state of being in contact with the conductive metal fixing member 18 serving as a current-carrying metal so that a current flows through the conductive metal fixing member 18. It collects electricity. If the cylinder body is on the minus electrode side, electric current can flow from the electric wire 20 connected to the conductive metal fixing member 18 to the cylinder body to supply power, and if the cylinder body is on the plus electrode side, the electric wire 20 can be obtained. Since a current flows through the device, electricity can be supplied to an externally connected device. As described above, in the current collecting member 12 of the present invention, both the supply of electricity to the cylinder body side and the supply of electricity from the cylinder body side to the external connection device are performed depending on whether the cylinder body side is the negative electrode or the positive electrode. It is possible.

According to the present invention, the sliding surface of the cylindrical base material 14 of the current collecting member 12 is provided with a plurality of lubricating regions 16 made of oil-impregnated carbon or an oil-impregnated carbon-containing resin in a scattered manner, thereby sliding The surface can be plated without oil, and can efficiently generate heat at a low voltage at high voltage.

FIG. 1 shows an example in which brass is used as the metal body, but the material of the cylindrical base material 14 is not particularly limited as long as it is a metal, and examples thereof include iron, copper, aluminum and alloys thereof. To be

The shape of the lubrication region 16 is not particularly limited, but as shown in FIG. 1, a circular shape is preferable. Further, the plurality of lubrication regions 16 may be provided at random on the sliding surface of the cylindrical base material 14, but it is preferable that the plurality of lubrication regions 16 be formed on the sliding surface evenly.
The method of forming the lubrication region 16 is not particularly limited. For example, a cylindrical metal body is used as the cylindrical base material 14, and a predetermined surface of the metal body is coated with oil-impregnated carbon or an oil-impregnated carbon-containing resin. The lubrication region 16 may be provided by using a mesh-shaped metal body as the cylindrical base material 14, and the mesh or surface of the mesh-shaped metal body is filled with oil-impregnated carbon or an oil-impregnated carbon-containing resin. You may coat and may provide the lubrication area|region 16. Further, a metal body having a plurality of holes or recesses may be used as the cylindrical substrate 14, and oil-impregnated carbon or an oil-impregnated carbon-containing resin may be fitted into the holes or recesses of the metal body to provide the lubrication region 16. ..

As the oil-impregnated carbon, carbon powder in which oil such as lubricating oil is kneaded is preferably used. As the oil-impregnated carbon-containing resin, a synthetic resin containing carbon powder in which oil such as lubricating oil is kneaded is preferably used. As the carbon powder, for example, carbon powder or graphite powder is preferable, and porous graphite powder is more preferable.
The synthetic resin is not particularly limited, and known synthetic resins can be used, for example, fluororesin, polyamide resin, polyethylene resin, polyacetal resin, polyurethane resin, phenol resin, epoxy resin, polyester resin, polyketone resin, Can be mentioned. The oil-impregnated carbon and the oil-impregnated carbon-containing resin may contain other additives.

In FIG. 1, a copper fixing member is shown as the conductive metal fixing member 18, but the material of the conductive metal fixing member 18 is not particularly limited as long as it is a conductive metal. , Copper, aluminum and alloys thereof.

It is preferable that the current collecting member 12 serves as a bearing of the spindle 30 of the chuck cone.

By incorporating the cylinder body plating apparatus 10 of the present invention into the fully automatic gravure plate-making processing system of Patent Document 2, for example, the fully automatic gravure plate-making processing system of the present invention is obtained. Of these, a fully automatic type, as disclosed in Patent Document 2, in which plate-making rolls are successively transferred to a plate-making processing unit using only a non-traveling type industrial robot without using a stacker crane to perform plate-making processing. It is preferable to incorporate the plating apparatus of the present invention into the gravure plate-making processing system. The fully automatic gravure plate-making processing system of the type disclosed in Patent Document 2 can manufacture the gravure plate-making rolls faster than before, and can save space and can be used at night. This is because it is a fully automatic gravure plate-making processing system that allows unmanned operation, has the flexibility to customize the production line, and can meet various customer needs.

As described above, by using the cylinder body plating apparatus of the present invention, it is possible to perform the plating processing on the sliding surface without oil during the plate making processing by the plating apparatus in the fully automatic gravure plate making processing system, and abnormal discharge is caused. It does not occur, no problems due to oil occur, low voltage of about 2/3 compared to the conventional one, good efficiency, heat generation can be suppressed to about 40°C, and high temperature heat generation is prevented. You can Furthermore, the cylinder body plating apparatus of the present invention can prevent the generation of sparks, does not generate spark marks, and is excellent in wear resistance. Further, even when plating is performed for a long time, the current collecting member and the conductive metal. The manufactured fixing member can maintain good conductivity and is excellent in durability.

Hereinafter, the present invention will be described in more detail with reference to examples, but it goes without saying that these examples are shown by way of illustration and should not be construed in a limited manner.

(Example 1)
As the cylinder body plating device, basically, a device having the same structure as the conventional cylinder body plating device was used except for the structure shown in FIG. A current collecting member 12 was used at the base end of the chuck cone spindle. As the current collecting member 12, SPB-7590100 manufactured by OILES CORPORATION was used. As the plating solution, a chromium plating solution having a chromic acid concentration of 250 g/L and a sulfuric acid concentration of 2.5 g/L was used.

As the cylinder to be processed, a cylindrical base material of aluminum core having a circumference of 800 mm and a face length of 1250 mm is used, and both ends of the cylinder to be processed are chucked and mounted in a plating tank to allow the chrome plating liquid to overflow to completely remove the cylinder to be processed. I let it go. The rotation speed of the cylinder to be treated was 100 rpm, the plating solution temperature was 55° C., the current density was 30 A/dm ² (current 3000 A), and the voltage was 6 V. A plating treatment was carried out for 10 minutes under these conditions, and a uniform plating film having a thickness of 6 μm was obtained with no spots or pits on the surface. Further, the heat generation of the current collecting member could be suppressed to about 40°C.

<Abnormal discharge occurrence test>
The plating treatment for 10 minutes was repeated 144 times under the same conditions as in Example 1 (total 24 hours). Chromium and additive components (CHRIO RX-R manufactured by Okuno Chemical Industries Co., Ltd.) consumed by plating were automatically replenished by an automatic replenishing device. The presence or absence of abnormal discharge was observed, but no abnormal discharge was confirmed.

<Behavior confirmation test>
Under the same conditions as in Example 1, the current collecting member 12 was attached to the plating tank, and chrome plating was continuously performed. The temperature of the conductive metal fixing member 18 during the test and the conductive metal fixing member 18 after the test were performed. The behavior was confirmed with respect to abrasion and changes in conductivity of the current collecting member 12 and the conductive metal fixing member 18 before and after the test. The test conditions are as follows.
Test time: 22 hours, number of cylinders used: 57, current value flowing in the cylinders: 3000 A, plating voltage: 7.0 V-7.2 V, cylinder rotation speed: 340 rpm.
During the test, generation of sparks was not confirmed, and the temperature of the conductive metal fixing member 18 was: average temperature: left 43.5°C, right 49.9°C, maximum temperature reached: left 51.0°C, right 59. The temperature was 0° C., and high temperature heat generation could be prevented. Further, after the test, there were no spark marks, and the conductive metal fixing member 18 was not worn. Furthermore, the conductivity of the current collecting member 12 and the conductive metal fixing member 18 did not change before and after the test, and extremely good results were obtained.

(Example 2)
As the plating device, the device having the configuration shown in FIG. 1 was used. A current collecting member 12 was used at the base end of the chuck cone spindle. As the current collecting member 12, SPB-7590100 manufactured by OILES CORPORATION was used. As the plating solution, a copper plating solution containing 200 g/L of copper sulfate, 100 g/L of sulfuric acid, and 100 mg/L of chloride ion was used.
As a cylinder to be processed, a cylindrical base material of aluminum core having a circumference of 800 mm and a surface length of 1250 mm is used, and both ends of the cylinder to be processed are chucked and mounted in a plating tank, and the copper plating liquid is overflowed to completely remove the cylinder to be processed. I let it go. The rotation speed of the cylinder to be treated was 250 rpm, the plating solution temperature was 45° C., the current density was 30 A/dm ² (current 3000 A), and the voltage was 6 V. A plating treatment was carried out for 10 minutes under these conditions, and a uniform plating film having a thickness of 60 μm and having no spots or pits on the surface was obtained. Further, the heat generation of the current collecting member could be suppressed to about 40°C.

<Abnormal discharge occurrence test>
The plating treatment for 10 minutes was repeated 144 times under the same conditions as in Example 2 (total 24 hours). The copper plating components consumed by plating were automatically replenished by an automatic replenishing device. The presence or absence of abnormal discharge was observed, but no abnormal discharge was confirmed.

(Comparative Example 1)
The conventional plating apparatus 40 shown in FIG. 2 was used as the plating apparatus, and the plating treatment was performed for 10 minutes in the same manner as in Example 1 except that the lubricating oil was supplied to the current collecting member. In the conventional plating device 40, a current collecting member having a sliding surface made of iron is used as the current collecting member 32 used at the base end of the chuck cone spindle.
In Comparative Example 1, the lubricating oil entered between the rotating iron current collecting member 32 and the conductive metal fixing member 18 to make it difficult for the current to flow. A high voltage of 9 V was required to obtain a uniform 6 μm plated film, and the current collector member generated heat at 120° C. due to friction and difficulty of current flow.

<Abnormal discharge occurrence test>
The plating treatment for 10 minutes was repeated 144 times under the same conditions as in Comparative Example 1 (total 24 hours). Chromium and additive components (CHRIO RX-R manufactured by Okuno Chemical Industries Co., Ltd.) consumed by plating were automatically replenished by an automatic replenishing device. The presence or absence of abnormal discharge was observed, and it was confirmed that the abnormal discharge occurred several tens of times.

<Behavior confirmation test>
Under the same conditions as in Comparative Example 1, a current collecting member 32 having a sliding surface made of iron was attached to the plating tank, lubricating oil was supplied to the current collecting member, and chrome plating was continuously performed. The behavior was confirmed under the same test conditions as.
During the test, a spark was generated, and the current collecting member 32 and the conductive metal fixing member 18 were not energized during the test, so the test was stopped during the test. The temperature of the conductive metal fixing member 18 at the time of the test was an average temperature of about 70° C. and a maximum reached temperature of 120° C. or higher, and high temperature heat generation was confirmed. In addition, after the test, numerous spark marks were confirmed, and the wear of the conductive metal fixing member 18 was severe from the spark marks.

10: Cylinder body plating device, 12: Current collecting member for cylinder body plating device, 14: Cylindrical base material, 16: Lubricating area, 18: Conductive metal fixing member, 20: Electric wire, 30: Spindle of chuck cone, 32: Iron current collecting member, 40: Conventional plating device.

Claims (6)

A current collecting member which is attached to a proximal end portion of the chuck cone of a cylinder body plating apparatus that grips both ends of a cylinder body with a chuck cone and rotates the cylinder body to perform plating,
A cylindrical substrate made of a metal body,
A plurality of lubrication regions composed of oil-impregnated carbon or oil-impregnated carbon-containing resin provided scattered on the sliding surface of the cylindrical base material,
A current collecting member for a cylinder body plating device, including: The current collecting member for a cylinder body plating apparatus according to claim 1, wherein the lubrication region has a circular shape. Plating bath,
A chuck cone provided in the plating bath for gripping and rotating the cylinder body,
A current collecting member attached to the base end of the chuck cone and rotated.
A conductive metal fixing member that is brought into contact with the sliding surface of the current collecting member,
An electric wire connected to the conductive metal fixing member,
A plurality of lubrications in which the current collecting member is composed of a cylindrical base material made of a metal body and oil-impregnated carbon or an oil-impregnated carbon-containing resin provided scattered on the sliding surface of the cylindrical base material. And a cylinder body plating apparatus having a region. The cylinder body plating apparatus according to claim 3, wherein the lubrication region has a circular shape. The cylinder body plating apparatus according to claim 3, wherein the current collecting member serves as a bearing of a spindle of the chuck cone. A fully automatic gravure plate-making processing system comprising the cylinder body plating apparatus according to any one of claims 3 to 5.

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